Safety-razor.



C. H. ATKINS.

. SAFETY RAZOR.

APPLICATION FILED AUG. 11, 1908.-

Patented 11611.28, 1911.

IIVVENTOR,

IVITNESSES:

A TTORNEY.

SAFETY-RAZOR.

assess.

.To all whom 'it may concern:

Beit known that I, CHARLES HENRY Ar- KINs, a citizen of 'the UnitedStates of America, residing at Springfield, in the county of Hampden andState of Massachusetts, have invented new and useful Improvements inSafety-Razors, of which the following is a specification.

This invention relates to improvements in safety razors and has for itsobject the construction of an implement of this character' in which arigid cutting blade may be adjusted relative toa yielding supportingguard to expose more or less of the cutting edges of the blade beyondthe borders of the guard according to the requirements of the personusing the implement.

The invention is clearly illustrated. in the accompanying drawings, inwhich,-

Figure l is an end elevation of a part of a blade and its guard on asomewhat enlarged scale, the guard being shown in two positions,-one ofwhich is in dotted lines. Fig. 2 is an end elevation on a smaller scaleof the complete implement. Fig. 3 is a top plan view showing the bladein its relation to the supporting guard, and Fig. 4 is a side elevation,partly in section, showing the means for adjusting and guiding theblades. Fig, 5 is an end elevation of a irodification showing a razorblade of circular' form. Fig. 6 is a sectional view on line 6-.6 of Fig.5 on an enlarged scale of the modification.

Referring to the drawings, a is the tubular handle of the razor providedwith a flanged upper end b of sufficient width to provide a proper seatfor the guard which, as a whole, is indicated by c. This guard is, asshown in Fig. 2, trough-shaped in cross section, its length beingsubstantially the same as that of the'blade d. The base of the guardrests upon the broadened upper end b of the handle and may besecuredthereto in any suitable manner and the two sides c of the guardincline outwardly and upwardly from said'base to such a degree thatpressure thereon in the direction ofthe aXisof the handle will cause theoutwardly inclined sides e to spring still -farther outward; and toinsure an easy yielding movement to these sides they are slotted fromthe outer borders thereof toward the base, as shown atf, Fig. 4g, and asindicated along thel borders of the blade in Fig. 3. These dentilatedborders curve outwardly and Specification of Letters Patent.

Application filed August 11, 1908.

Patented Feb. 28, 191i.

serial No. 447,969.

pins g which are secured to the bottom part of the guard equi-distantfrom the center' thereof on which pins the blade has a sliding 'movementvertically.

An adjusting rod 7L extends through the handle a and is provided at itslower end with a knurled head 1 and at the other end thereof with ascrew-thread adapted to be screwed into a hole in the center of theblade between the dowels g.

J ust below the screw-threaded portion of the stem a collar m isprovided which determines the limit of adjustable movements of the bladetoward the bottom of the `guard. The space between the underside of theblade and the collar m issomewhat exaggerated in the drawings for thesalte of clearuess. By screwing the stem in or out, the blade is drawntoward or forced away from the turned-over borders of the guard.

Normally, the position of the blade relative to the edges of the guardis one of relatively light contaet, that is to say such a degree ofcontact as will. not deflect the sides c of the guard outwardly, but theblade is rigid enough, (as compa-red with the resistance to iiexure ofthe sides c'of the guarch) to cause these sides to spring out wardlywhen by the operation of the screwthreaded stem the blade is drawntoward the bottom of the guard. 'Assuming therefore, that the normalposition of the blade relative to the edge of the guard is that shown inFig. 1, in full lines, it is clear thatby the manipulation of thescrew-threaded stem L the blade may be drawn down and thus force theborder of the guard outwardly until only the thinnest edge of the bladewill project beyond the guard thus giving the user a choice of any kindof an edge on the implement that he requires.

The rod or stem 7L has a very accurate fit in the handle a of theimplement which fit effectively prevents the blade (Z from assuming aninclined or uneven position on the gua-rd yc should the pins g have aloose fit in the blade. The collar m on the rod 7L further prevents therod from dropping out of the handle when assembling the blade and beforethe rod is screwed into the blade.

The blade Z is rigid as distinguished from llO a flexible one since thethickened center por-` tion of the blade (as shown in Fig. l) serves atall times to maintain the blade in its original shape without regard topressure exerted thereon by the edge of the blade on the guard when inuse. The cutting edge of the blade is produced by grinding, having thecenter portion of the blade its original thickness, whereby firmness andan even contactthroughout is maintained between the cutting edge andguard.

Referring to the modification shown in` Figs. 5 and 6, wherein acircular blade and guard are shown: The circular blade designated by theletter n) and the guard tdesignated by the letter o) have their'peripheries arranged concentrically with each other. The blade n, likethe blade al is a rigid one with a thickened center portion, but is notprovided with any centering pins, the rod h in this case serving tocenter the blade with relation to the edge of the guard. Both blades Zand a are understood to be reversible if desired. Y

Some of the advantages of a circular blade are the lessened cost ofmanufacture and freedom of injury to the user and it also provides amaximum cutting Vedge over the forms now in use. Y

What I claim, is

1. In a razor, the combination with a threaded, perforated, rigid, onepiece blade, a holder therefor, said holder including a flexible,dentilated guard and a handle, a threaded rod mounted in the handle anden'- gaging the threaded perforated blade, means on the rod for rotatingthe same and drawing the blade into engagement with the guard, and pinsmounted in the guard for engaging the perforated blade.

2. A razor having in combination, a rigid blade having a threadedperforated opening therethrough, a guard, pins on the guard torpositioning the blade on said guard, a handle, a rotatable, clampingmounted in the handle and provided with a collar portion and a threadedend, the threaded end of said rotatable member engaging said opening linthe blade, whereby the rigid blade is bodily movable'toward and awayfrom the guard, the collar portion' engaging the outer part of thehandle,

-whereby the rotatable member is prevented from displacement from thehandle when the blade is detached from the said rotatable member.

CHARLES HENRY ATKINS. Witnesses K. I. CLEMONS, H. W. BOWEN.

member a

